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Proceedings Paper

Holographic particle image velocimetry: optical conjugate reconstruction using a simplified transmission geometry
Author(s): Rob D. Alcock; Colin P Garner; Neil A. Halliwell; Jeremy M. Coupland
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Paper Abstract

A new simplified Holographic Particle Image Velocimetry technique to make simultaneous measurements of 3D velocity vector information throughout a complex fluid flow is presented in this paper. The method uses a variation of Optical Conjugate Reconstruction with complex correlation analysis and dispenses with the need to have a Holographic Optical Element to correct for distortions introduced by non-uniform windows. Subsequent analysis to extract a map of particle velocity is performed digitally using ray tracing techniques to model the effect of the windows. Results are presented for measurements made within a thick windowed diesel engine, showing that flow velocity vectors can be measured to an accuracy of 3% using the technique and, illustrating the ray trace mapping procedure.

Paper Details

Date Published: 10 November 2003
PDF: 12 pages
Proc. SPIE 5191, Optical Diagnostics for Fluids, Solids, and Combustion II, (10 November 2003); doi: 10.1117/12.510033
Show Author Affiliations
Rob D. Alcock, Loughborough Univ. (United Kingdom)
Colin P Garner, Loughborough Univ. (United Kingdom)
Neil A. Halliwell, Loughborough Univ. (United Kingdom)
Jeremy M. Coupland, Loughborough Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 5191:
Optical Diagnostics for Fluids, Solids, and Combustion II
Patrick V. Farrell; Fu-Pen Chiang; Carolyn R. Mercer; Gongxin Shen, Editor(s)

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